well i did something similar yesterday, or aatleast i thought i did. See the shot was a little too far back and when i got down and looked at my arrow there was stomach fluid and whit hair.so i backed out and get him a couple of hours. Turns out since I was in a treestand it exited through the stomach but it took out a lung, the liver, and some guts. It didnt go but 30 yards before piling up (not bedded down). If you know for sure that you hit nothing but guts I would DEFINATELY wait until morning and you might be surprised how close she really is to wher you shot her.Good luck and kudos to you for backing out and doing the right thing

you will get her bud. give her time and keep us updated.